Results 131 to 140 of about 165 (163)

Continuous and Large‐Scale: ELEANOR, the Soft Architected Arm Inspired by the Elephant Trunk

Advanced Intelligent Systems, EarlyView.
A large‐scale, architected continuum robot inspired by the macroscopic properties of the African elephant trunk achieves adaptive elephant‐like movements and whole‐body grasping. The results demonstrate that designing from the natural system’s macroscopic properties, rather than prescribing behaviors, provides a powerful strategy for developing ...
Giovanna A. Naselli, Anderson B. Nardin, Seonggun Joe, Ryan Drinkwater, Enrico Donato, Diego Bianchi, Egidio Falotico, Michel C. Milinkovitch, Lucia Beccai   +8 more
wiley   +1 more source

How cold is too cold? A theoretical analysis of the optimal trigger for index insurance for frost damage to crops

American Journal of Agricultural Economics, EarlyView.
Abstract Crop insurance is undoubtedly an extremely valuable element in protecting agricultural businesses, but in many cases standard indemnity‐based products have had very low uptake due to high transaction costs elevating premiums to unaffordable levels.
Amogh Prakasha Kumar, Laura Meriluoto, Richard Watt   +2 more
wiley   +1 more source

A High‐Voltage Membrane‐Free Li–Organic Hybrid Flow Battery Using Eutectic Lithium Chemistry

Angewandte Chemie, EarlyView.
A high‐voltage (3.6 V) membrane‐free Li–organic hybrid flow battery is enabled by a deep‐eutectic lithium electrolyte composed of trifluoroacetamide (TFAD) and LiPF6, paired with a dichloromethane (DCM) catholyte containing phenothiazine (PTZ). The TFAD/LiPF6 eutectic provides fast Li+ transport and stable Li‐metal cycling, while the immiscible TFAD ...
Xiao Wang, Bindu Dahal, Yuhang Tang, Jack J. McGrath, Rabin Siwakoti, Feng Wang, Jun Cheng, Jianbing “Jimmy” Jiang   +7 more
wiley   +2 more sources

Risk management externalities in agrifood supply chains

American Journal of Agricultural Economics, EarlyView.
Abstract Firms may under‐ or over‐invest in risk management from the social planner's perspective, resulting in a negative externality on other economic agents in the supply chain. The externality of risk management is particularly relevant for agrifood supply chains, which frequently experience disruptions and play a primary role in preventing major ...
Jeffrey Hadachek, Meilin Ma
wiley   +1 more source

High‐elevation endemic plants predicted to lose habitat from changing climate in Washington State

American Journal of Botany, EarlyView.
Abstract Premise High‐elevation plants face unique challenges from potential climate change impacts that will likely require upslope migration into increasingly smaller suitable habitat. This situation is particularly acute for endemic species that by definition occupy small geographic ranges.
Nicholas L. Gjording, Erik W. Ertsgaard, David E. Giblin, Iris H. Dimpsey, Owen B. Bard   +4 more
wiley   +1 more source

Radiative Hybrid Nanofluid Flow Over a Porous Riga Surface: A Fuzzy–ANN Modeling Approach

Asia-Pacific Journal of Chemical Engineering, EarlyView.
ABSTRACT This study proposes a fuzzy–ANN model to investigate the nonlinear thermal transport in a tangent hyperbolic (Tanh) hybrid nanofluid flow past a porous Riga surface, considering the effects of Rosseland diffusion, chemical reactions, and internal volumetric heating.
Azad Hussain, Rabia Zetoon, Reeha Iqbal
wiley   +1 more source

Residual Strength Prediction of Chemically Reactive Two‐Phase Nanofluid Flow in a Bingham–Papanastasiou Rheological Theory Using a Morlet‐Based Wavelet Neural Network Approach

Asia-Pacific Journal of Chemical Engineering, EarlyView.
ABSTRACT The behavior of nanofluid flow involving a zero‐mass flux condition has received considerable interest because of a realistic scenario. In reality, this condition confines the optimistic accumulation or disappearance of nanoparticles past a sheet, constructing a more physically realistic demonstration through several applications, such as heat
Umair Khan, Hamza Rauf, Aurang Zaib, J. K. Madhukesh   +3 more
wiley   +1 more source

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Static perfect fluid cylinders - a new approach to Kramer's equations

Journal of Physics A: Mathematical and General, 2000
Summary: Using Kramer's formulation of static cylindrically symmetric perfect fluid solutions, we propose a fairly general integration procedure which yields existing solutions as special cases. Foremost, we reduce the problem of finding the cylindrically symmetric analogue of the Schwarzschild interior solution to that of solving a nonlinear second ...
Soh, C. Wafo, Mahomed, F. M.
openaire   +2 more sources

Solutions of Einstein-Maxwell field equations for a static charged perfect fluid shphere

Astrophysics and Space Science, 1983
For the static line element in spherical symmetry \(ds^ 2=e^{\nu}dt^ 2-e^{\lambda}dr^ 2-r^ 2(d\theta^ 2+\sin^ 2 \theta d\phi^ 2)\) Einstein-Maxwell field equations for charged perfect fluid are: \(r^{- 2}-e^{-\lambda}(r^{-2}-\lambda '/r)=8\pi \delta +q^ 2/r^ 4\), (*) \(d((e^{-\lambda}-1)/r^ 2)/dr+d((e^{-\lambda}\nu '/2r))/dr+e^{- \lambda -\nu}d((e^{\nu}
Dionysiou, D. D., Kostakis, C. G.
openaire   +2 more sources

New exact static solutions to Einstein’s equations for spherically symmetric perfect fluid distributions

Journal of Mathematical Physics, 1982
New exact solutions to Einstein’s equations are given which are spherically symmetric and static with perfect fluid distributions satisfying a linear equation of state p = nρ and n∈(0,1]. Heintzmann’s generating method is then used to build up a family of new solutions for each value of n.
Ibanez, J., Sanz, J. L.
openaire   +2 more sources